Re: Zeiss Lens Photos and Discussion (see also ZE/ZF/ZM thread)
FlyPenFly wrote:
So my M42 Zeiss Jena 135mm F3.5 came in, really great condition but focusing is STIFF, anything I can do at home to improve that?
I have a CZJ Pancolar 50/1.8 which has the same problem. Focusing was stiff and dry. After ~2 years of using it is less stiff but still feels dry. I read that CZJ didn\'t use two different metals for the two parts of the focusing helicoid (to cut production costs), which makes them slowly fuse together, but I think the bigger part of the problem is dried out lube. It\'s relatively easy to dismantle the focusing helicoid on these lenses to clean out the old lube and replace it, but you have to know how to clean it and have a suitable replacement lube of course. I\'d get an experienced repairman to do it for you (shouldn\'t be too expensive), unless you like to get your hands dirty and do it yourself.
Jul 08, 2011 at 08:18 AM
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